9 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... Intestine: SIBO, Celiac ... disease, IBD, Lymphoma ... Stomach: Pernicious anemia ... #differential #diagnosis
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Loss (without anaemia ... Bleeding, Edema, Celiac ... #differential #diagnosis ... #causes #nutrition
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Drugs, H pylori, Celiac ... : IBD, Chronic disease ... #differential #diagnosis ... #anemia #nutrition
Differential Diagnosis and Evaluation of Hyponatremia:
1) Identification of onset (acute vs. chronic)
2) Presence of symptoms (HA,
and Evaluation ... symptoms (HA, nausea ... , liver, renal disease ... #EM #IM #Nephro ... Differential #Algorithm #Ddxof
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
• Common Causes ... related to IBD, celiac ... disease, other ... total body stores Evaluation ... #management #nutrition
Micronutrient Deficiencies After Gastric Bypass
Fat-Soluble Vitamins:
 • Vitamin A - Night/complete blindness, xeropthalmia (pathologic dryness of
Vitamin D - Bone disease ... • Thiamine - Nausea ... • Vitamin B12 ... Bypass #vitamin #nutrition ... #differential #diagnosis
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Causes of Low Vitamin ... B12 Levels Low ... vitamin B12 intake ... , coeliac disease ... #differential #diagnosis
Serious Bacterial Illness (SBI):
1) UTI and pyelonephritis
Most common cause of SBI
Accounts for 3-8% of uncharacterized fevers
Female
pyelonephritis Most common cause ... Consider BCx, CSF evaluation ... unformed) PNA diagnosed ... #Peds #EM #Classification ... SeriousBacterialIllness #Ddxof
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
Out Secondary Causes ... Myeloproliferative Disease ... Platelet Disorders • Nutritional ... : vitamin B12 or ... Myelodysplastic #Syndromes #diagnosis